• MPC Preparation (Info)

    • MPEC 2009-G31 : COMET C/2009 F6 (YI-SWAN)

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    Read MPEC 2009-G30 Read MPEC 2009-G32 

    M.P.E.C. 2009-G31                                Issued 2009 Apr.  9, 17:20 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
   on behalf of Commission 20 of the International Astronomical Union by the
          Minor Planet Center, Smithsonian Astrophysical Observatory,
                          Cambridge, MA 02138, U.S.A.

             Prepared using the Tamkin Foundation Computer Network

                              MPC@CFA.HARVARD.EDU
          URL http://www.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714

                           COMET C/2009 F6 (YI-SWAN)

Observations:
    CK09F060  C2009 03 25.06024 22 28 28.80 +48 45 14.0          10.7 T EG031114
    CK09F060  C2009 04 07.07486 00 01 16.24 +54 59 48.8          11.5 N EG031A71
    CK09F060  C2009 04 07.07921 00 01 18.31 +54 59 54.3          11.6 N EG031A71
    CK09F060  C2009 04 07.08568 00 01 21.51 +55 00 01.5          11.6 N EG031A71
    CK09F060  C2009 04 07.11936 00 01 37.80 +55 00 40.9          11.6 N EG031A71
    CK09F060  C2009 04 07.48128 00 04 34.35 +55 07 32.5          11.5 N EG031H06
    CK09F060  C2009 04 07.48443 00 04 35.89 +55 07 36.0          11.7 N EG031H06
    CK09F060  C2009 04 07.48756 00 04 37.42 +55 07 39.4          11.6 N EG031H06
    CK09F060  C2009 04 07.74198 00 06 41.88 +55 12 17.5                 EG031349
    CK09F060  C2009 04 07.74368 00 06 42.65 +55 12 19.1                 EG031349
    CK09F060  C2009 04 07.74537 00 06 43.49 +55 12 21.2                 EG031349
    CK09F060  C2009 04 07.74706 00 06 44.35 +55 12 23.4          11.3 T EG031349
    CK09F060  C2009 04 07.77727 00 06 59.24 +55 12 56.5          13.7 N EG031900
    CK09F060  C2009 04 07.78114 00 07 01.11 +55 13 00.7                 EG031900
    CK09F060  C2009 04 07.79866 00 07 09.00 +55 13 18.5          12.7 N EG031235
    CK09F060  C2009 04 08.77670 00 15 12.75 +55 30 03.5          13.6 N EG031900
    CK09F060  C2009 04 08.78056 00 15 14.67 +55 30 07.1                 EG031900
    CK09F060  C2009 04 08.80113 00 15 24.34 +55 30 24.6          14.5 N EG031585
    CK09F060  C2009 04 08.80530 00 15 26.35 +55 30 29.2          14.6 N EG031585
    CK09F060  C2009 04 08.80751 00 15 27.51 +55 30 30.4          14.5 N EG031585
    CK09F060  C2009 04 08.80983 00 15 28.70 +55 30 32.5          14.5 N EG031585
    CK09F060  C2009 04 08.81213 00 15 29.68 +55 30 35.9          14.7 N EG031585
    CK09F060  C2009 04 08.82144 00 15 34.52 +55 30 43.0          14.4 N EG031585
    CK09F060  C2009 04 08.82714 00 15 37.39 +55 30 49.4          14.5 N EG031585
    CK09F060  C2009 04 08.83000 00 15 38.75 +55 30 52.1          14.5 N EG031585
    CK09F060  C2009 04 08.83856 00 15 43.07 +55 31 01.1          14.6 N EG031585
    CK09F060  C2009 04 08.84653 00 15 47.02 +55 31 07.7          14.5 N EG031585
    CK09F060  C2009 04 09.43381 00 20 39.62 +55 40 16.3          13.0 N EG031D92
    CK09F060  C2009 04 09.44241 00 20 44.01 +55 40 23.3          13.4 N EG031D92
    CK09F060  C2009 04 09.44429 00 20 45.00 +55 40 26.0          12.4 T EG031D92

Observer details:
114 Engelhardt Observatory, Zelenchukskaya Station.  Observer S. Korotkiy.
    0.01-m f/4.0 refractor + CCD.  Prediscovery observation.
235 CAST Observatory, Talmassons.  Observer P. Beltrame.  0.35-m f/6 reflector
    + CCD.
349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
585 Kiev comet station.  Observer A. Baransky.  0.7-m f/4 reflector + CCD.
900 Moriyama.  Observer Y. Ikari.  0.26-m f/7.0 reflector + CCD.
A71 Stixendorf.  Observer M. Jaeger.  Measurer W. Vollmann.  0.14-m f/2.9
    reflector + CCD.
D92 Osaki.  Observer T. Yusa.  0.20-m f/6.3 Schmidt-Cassegrain + CCD.
H06 RAS Observatory, Mayhill.  Observers E. Guido, G. Sostero.  0.10-m f/5
    reflector + CCD.

Orbital elements:
    C/2009 F6 (Yi-SWAN)
T 2009 May 5.678 TT                                     MPC
q   1.28536              (2000.0)            P               Q
                   Peri.  127.997       -0.030050       -0.155073
                   Node   278.089       +0.253935       +0.954296
e   1.0            Incl.   85.842       +0.966754       -0.255483
From 93 observations 2009 Mar. 25-Apr. 9.

Ephemeris:
    C/2009 F6 (Yi-SWAN)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2009 04 09    00 17.05   +55 33.7    1.767    1.347    49.2    34.3   8.5
2009 04 14    00 59.34   +56 28.3    1.779    1.327    47.5    33.9   8.5
2009 04 19    01 41.82   +56 33.7    1.801    1.310    45.5    33.1   8.5
2009 04 24    02 22.37   +55 52.9    1.833    1.298    43.2    32.0   8.4
2009 04 29    02 59.47   +54 33.4    1.873    1.289    40.7    30.6   8.5
2009 05 04    03 32.36   +52 44.9    1.920    1.286    38.0    28.9   8.5
2009 05 09    04 01.01   +50 36.5    1.972    1.286    35.2    26.9   8.6
2009 05 14    04 25.82   +48 16.0    2.028    1.292    32.3    24.7   8.6
2009 05 19    04 47.31   +45 49.3    2.086    1.301    29.3    22.3   8.7

Brian G. Marsden             (C) Copyright 2009 MPC           M.P.E.C. 2009-G31

    Read MPEC 2009-G30 Read MPEC 2009-G32

    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)